Role of Temperature and SiCP Parameters in Stability and Quality of Al-Si-Mg/SiC Foams
| Autor: | N.V. Ravi Kumar, Amol A. Gokhale |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Alloy General Engineering Titanium hydride Foaming agent 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology 01 natural sciences Stability (probability) chemistry.chemical_compound chemistry 0103 physical sciences Silicon carbide engineering Particle General Materials Science Process window Particle size Composite material 0210 nano-technology |
| Zdroj: | JOM. 70:823-828 |
| ISSN: | 1543-1851 1047-4838 |
| DOI: | 10.1007/s11837-018-2825-0 |
| Popis: | Composites of Al-Si-Mg (A356) alloy with silicon carbide particles were synthesized in-house and foamed by melt processing using titanium hydride as foaming agent. The effects of the SiCP size and content, and foaming temperature on the stability and quality of the foam were explored. It was observed that the foam stability depended on the foaming temperature alone but not on the particle size or volume percent within the studied ranges. Specifically, foam stability was poor at 670°C. Among the stable foams obtained at 640°C, cell soundness (absence of/low defects, and collapse) was seen to vary depending on the particle size and content; For example, for finer size, lower particle contents were sufficient to obtain sound cell structure. It is possible to determine a foaming process window based on material and process parameters for good expansion, foam stability, and cell structure. |
| Databáze: | OpenAIRE |
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